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3 years ago

The value of y is directly proportional to the value of x. If y = 35 when x = 140, what is the value of y when x = 70?

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

5 0

Answer:

y = 17.5

Step-by-step explanation:

Use the direct proportion equation, y = kx

Plug in the x and y values to solve for k

y = kx

35 = k(140)

0.25 = k

Then, plug in the k value and given x value into the equation, and solve for y

y = kx

y = 0.25(70)

y = 17.5

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3 years ago

A kite is flying 20 ft off the ground. Its line is pulled taut and casts a 15 ft - shadow. Find the length of the line. If neces

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Answer:

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Step-by-step explanation:

Data

height = 20 ft

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To solve this problem use the Pythagorean theorem.

Height = short leg = b

leg = long leg = a

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3 years ago